226 



THE SCOLYTID BEETLES. 



POSITION OF THE PRINCIPAL DESCRIBED GENERA IN THE 

 PRELIMINARY CLASSIFICATION. 



Family Ipidse. 



Subfamily Cryphalinse. 



Cosmoderes Eichh . 



Cryphalomorphus Schauff. 



Ilypoihenemus Westw. 



Stephanoderes Eichh. 



Ernoporus Thoms. 



Trypophlceus Fairm. 



Cryphalops Reitt. 



Cryphaloides Form. 



Cryptarthrum Blndfd. 



Cryphalus Erich. 



Mdophelus Eichh. 



Kyrtogenius Stroh. 



Lepicerus Eichh. 



Lymantor L0v. 



Dendroterus Blndfd. 



Xylocleptes Ferr. 



Taphrorychus Eichh. 



Thamnurgus Eichh. 



Coccotrypes Eichh. 



Ozopemon Haged. 



Dryocoetes Eichh. 



Xyleborus Eichh. 



Anisandrus Ferr. 



Eccoptopterus Motsch. 



Cnestus Sampson. 

 Subfamily Ipinse. 



Pityophthorus Eichh. 



Olonfhogaster Motsch. 



Acanthotomicus Blndfd. 



Pityogenes Bedel. 



Ips De Geer. 

 Subfamily Gorthylinaj. 



Metacorthylus Blndfd. 



Monarthrum Kirsch . 



Cosmocorynus Ferr. 



Phthorius Eichh. 



Anchonocerus Eichh. 



Glochinocerus Blndfd. 



Tricolus Blndfd. 



Amphicranus Erich. 



Steganocranus Eichh. 



Corthylus Erich. 



Br achy spar tus Ferr. 



Gnathotrichus Eichh. 



Premnohius Eichh. 



Xyloterus Erich. 

 Subfamily Micracinse. 



Pcecilips Schauf . 



Thysanoes Lee. 



Family Ipidse — Continued. 



Subfamily Micracinse — Continued . 



Micracis Lee. 



Hylocurus Eichh. 



Styracopterus Blndfd. 



Liparthrum Woll. 



Dacryostactus Schauff. 



Hypoborus Erich. 



GlocJiiphorus Stroh. 



Cactopinus Schwarz. 

 Subfamily Webbinse. 



Wchhia n. gen. 

 Subfamily Xyloctoninse. 



Scolytogenes Eichh. 



Scolytomiinus Blndfd. 



Scolytodes Ferr. 



Xyloctonus Eichh. 



Gtonoxylon Haged. 

 Subfamily Crypturginse. 



Aphanarthruvi Woll. 



Triotevinus Woll. 



Crypturgus Eichh. 



Cisurgus Reitt. 



Dolurgus Eichh. 



Dendroctonus Erich. 

 Subfamily Phlceotribinse. 



Phloeoplithorus Woll. 



Eulytocerus Blndfd. 



Phlceotribus Latr. 



Dryotomus Chap. 



Renocis Casey. 



Chxtophlcfus Lee. 



Chramesus Lee. 



Chortastus Schauff. 



Carphoborus Eichh. 



Cladoctonus Stroh. 



Lissoclastus Schauf. 



Tiai'ophorus Schrein. 



Phrixosoma Blndfd. 



Lepisomus Kirby. 



Polygraphus Erich. 



Spongotarsus Haged, 

 Subfamily Hylesininse. 



Xylechinus Chap. 



Kissophagus Chap. 



Hylurgus Latr. 



Pachycotes Sharp. 



Tomicus Latr. ( Myelophilus 

 Eichh.) 



Hylastinus Bedel. 



Scierus Lee. 



